Automobile bumper



L. A. NAVONl.

- AUTOMOBILE BUMPER.

APPLICATION FILED JULY 21,1920.

mama. A r. 25, 1922;

I 041 115 A fla e M W. .Tsig

7' 1 LOUIS A. NAVONI, or SEATTLE, wnsnnvo roiv v ao'rolvroninn BUMPER.

batters known as automobile bumpers which are secured to the framework ol motor vehicles and serve as fenders to overcome the o'er-ts 01 collisions.

The. obiect of my invention is to PIOVlCiB' a device of this character having greater.

efiiciencv and or less expensive construction than the automobile bumpers now commonly used.

' struction, adaptation and combination of parts as will be hereinafter described and claimed. I

In the accompanying drawings, F gure 1 is a plan viewf the front end of an automobile with the present invention applied thereto. Fig. 2 is a view of the same, shown partly inside elevation and partly in lon-' o'itudinal vertical section, Fig. 3 is a perspective view of one or") the "frame attachments. n

In carrying out the invention, I provide a resilient or spring metal bumper bar formed to furnish an arcuate shapedfro'nt portion 5 which connected at the rear of each of its ends by a looped portion 6 and a curve'd portion 4 ends 8.

with inwardly directed Thebar ends 8 are seated in transverselyarranged slots 9 provided ln the bifurcated heads '10 of bracket rods 11 and are retained therein by a bolt 12 extenchngthrough the bifurcations oi each of the boltheads above the respective bumper ends 8 to afford relative tra isverse movements of the latter.

The'bracket rods 11- are provided intermediate their lengths with collar elements and to the rear thereof the rods 11 extend through apertures of attachments 1% which are rigidly secured by bolts 15 to the side bars 16 of an automobile chassis.

As shown in Fig. 3, each of the attach ments 14, in transverse section, is of substantially the shapeof a letter F with the aperture 17 to one side of the stem part 18.

i from, as denoted The invention consists in the novel conurge the bumper bar forward.

Specification of amusement. Pfltgnted ADI-0'25, 192,2 Application file djuly 21,1920. Serial No. 397,880;

By such devices, the located at different distances apart bysecnrin: the attachments so that the offsets there of will extend over therespective frame bars 16 as shown by full lines, or outwardly there by dotted. lines 14 in Fig. 1.

The ends of threaded to receive nuts 19 which are on gageable against the rear sides of the-respect'ive'attachments.

Between said attachments and the collars 13 are helical springs 20 which serve to normally retain the'bumper bar in itsmost for ward position and supplement the springlike action of the bumper bar itself in compensating substantially all shocks received by the bumper in collisions. I

The peculiar shape of the bumper bar contributes tothe efficiency .of'my; invention by distributing the stresses due to shocks whether received in axial alignment with the.

travel of the automobile or otherwise.

bracket ,rO'ds may be the bracket rods are screw The bracket rods are guided forja'xial.

movements in the frame attachments and serve to support. the springs 20 which act to lVhat I claim is, i

a The combination of an arcuate shaped bumperhaving inwardly directed ends, attachments for. the side bars of an automobile frame, eachlof said attachments being in transverse section of substantially the shape or a letter F and adapted to haveitsstem element rigidly secured to the respective frame bar, bracket rods extending the laterally d1rected portions o't tne respective attachments, said rods being each pro vided at its front end with a head having a through transverse slot to receive the bumper ends,

bolts engaging the heads above said bumper ends to retain the bumper ends in the redhead slots, springs provided upon said rodsto yielding-1y retain said bumper in its most forward position, and means achustable upon said rods for regulating the efl'ectivejpower or said springs. ngned at Seattle, Washmgton, this-14th day of July, 1920.

' V LOUIS A. .NAVONI. Witnesses r I 1 PIERRE BARNES,

MARGARET G. SUP LE. 

